<template>
	<view>
		<view class="goods-item">
		  <!-- 左侧的盒子-->
		  <view class="goods-item-left">
        <radio :checked="goods.goods_state" color="#C00000" v-if="showRadio" @click="radioClickHandler"></radio>
		    <image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
		  </view>
		  <!-- 右侧的盒子 -->
		  <view class="goods-item-right">
		    <!-- 商品标题 -->
		    <view class="goods-name">{{goods.goods_name}}</view>
		    <view class="goods-info-box">
		      <!-- 商品价格 -->
		      <view class="goods-price">￥{{goods.goods_price | toFixed}}</view>
          <!-- 商品数量 -->
          <uni-number-box :min="1" :value="goods.goods_count" v-if="showNum" @change="numChangeHandler"></uni-number-box>
		    </view>
		  </view>
		</view>
	</view>
</template>

<script>
	export default {
    props:{
      goods:{
        type:Object,
        default:{}
      },
      // 是否显示showRadio
      showRadio:{
        type:Boolean,
        default:false
      },
      // 是否展示价格右侧的 NumberBox 组件
      showNum:{
        type:Boolean,
        default:false
      }
    },
		data() {
			return {
				// 默认图片
				defaultPic:'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png'
			};
		},
    methods:{
      // 这是radio组件的事件处理函数
      radioClickHandler(){
        this.$emit('radio-change',{
          goods_id:this.goods.goods_id,
          goods_state:!this.goods.goods_state
        })
      },
    // NumberBox 组件的 change 事件处理函数
     numChangeHandler(val) {
       // console.log(val)
       // 通过 this.$emit() 触发外界通过 @ 绑定的 num-change 事件
       this.$emit('num-change', {
         // 商品的 Id
         goods_id: this.goods.goods_id,
         // 商品的最新数量
         goods_count: +val
       })
     }
    },
    filters:{
      // 把数字处理为带两位小数点的数字
      toFixed(num){
        return Number(num).toFixed(2)
      }
    }
	}
</script>

<style lang="scss">
 .goods-item{
    display: flex;
    padding: 10px 5px;
    border-bottom: 1px solid #f0f0f0;
    .goods-item-left{
      margin-right: 5px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      .goods-pic{
        width: 100px;
        height: 100px;
        display: block;
      }
    }
    .goods-item-right{
      display: flex;
      flex: 1;
      flex-direction: column;
      justify-content: space-between;
      .goods-name{
        font-size: 12px;
      }
      .goods-info-box{
        display: flex;
        justify-content: space-between;
        align-items: center;
        .goods-price{
          font-size: 17px;
          color: #C00000;
        }
      }
    }
  }
</style>
